clean
clear
color
creek
decoration
environment
erosion
fall
flow
flowing
forest
fresh
green
hard
healthy
limpid
long
mountain
natural
nature
outdoor
outside
park
pattern
pebble
pool
pure
rain
relax
river
rock
rocky
rough
scenery
season
shallow
shiny
slow
smooth
spa
stone
stream
tranquil
vibrant
water
waterfall
wet